Txheej txheem cej luam: EN 10216-2 yog dab tsi?
TS EN 10216-2yog ib tug European standard npe"Seamless steel tubes rau lub hom phiaj siab - Kev xa tawm cov xwm txheej - Ntu 2: Tsis yog- alloy thiab alloy steel hlab nrog cov khoom ntsuas kub siab."
Hauv cov ntsiab lus yooj yim, nws txhais cov kev xav tau rauseamless steel kavtsim los ua haujlwm nyob rau hauv siab ntawm qhov kub thiab txias. Cov no yog cov khoom tseem ceeb hauv cov tshuab uas tsis ua haujlwm tsis yog qhov kev xaiv.
Key Takeaway:Yog tias koj pom cov yeeb nkab cim nrog EN 10216-2, koj paub tias nws yog cov yeeb nkab zoo, seamless uas tau lees paub rau siv rau hauv qhov xav tau qhov kub thiab txias.
Cov yam ntxwv tseem ceeb thiab Scope
Seamless Chaw tsim tshuaj paus:Cov kav dej yog tsim los tsis muaj welded seam, ua rau lawv muaj zog thiab txhim khu kev qha rau siab - kev siv siab. Lawv feem ntau yog tsim los ntawm cov txheej txheem xws li kub extrusion lossis tho lub pob zeb.
Lub Hom Phiaj Siab:Lub hom phiaj tseem ceeb ntawm kev tsim yog kom muaj lub siab sab hauv (xws li chav dej, dej kub, roj, roj).
Qhov kub thiab txias Properties:Tus qauv qhia cov khoom siv kho tshuab (xws li lub zog tensile thiab lub zog tawm los) uas cov hlau yuav tsum tswj tau ntawm qhov kub thiab txias. Qhov no yog qhov tseem ceeb rau kev siv xws li fais fab boilers thiab cov txheej txheem cua sov.
Tsis yog -Alloy & Alloy Steels:Tus qauv npog ob qho tib si carbon steels (tsis yog-alloy) thiab qis- alloy steels (nrog cov ntsiab lus xws li Chromium thiab Molybdenum rau kev txhim kho lub zog thiab kub ua haujlwm).
Cov Qib Siab Cov Hlau Hlau hauv EN 10216-2
Tus txheej txheem txhais tau ntau yam qib steel, txhua tus muaj cov tshuaj muaj pes tsawg leeg thiab cov cuab yeej cuab yeej cuab tam. Cov feem ntau yog:
Tsis yog -Alloy / Carbon Steels:
P195GH:Ib qho dav dav -lub hom phiaj qib carbon steel rau qhov kub txog li ~ 300℃.
P235GH:Qhov feem ntau carbon steel qib rau siab lub hom phiaj. Zoo weldability thiab formability.
P265GH:Lub zog siab dua P235GH, siv rau kev siv siab dua.
Alloy Steels (nrog Chrome-Molybdenum):
Cov qib no muab lub zog zoo dua ntawm qhov kub thiab txias dua thiab zoo dua rau oxidation.
13CrMo4-5:Muaj li ntawm 0.8% Chromium thiab 0.5% Molybdenum. Zoo rau kub txog li ~ 550 degree.
10CrMo9-10:Muaj li ntawm 2.25% Chromium thiab 1% Molybdenum. Ib qho khoom siv ntau heev rau siab - kev pabcuam kub (piv txwv li, cov kab hauv cov fais fab nroj tsuag).
X10CrMoVNb9-1 (P91):Cov qib siab siab - lub zog alloy steel nrog Chromium, Molybdenum, Vanadium, thiab Niobium. Siv nyob rau hauv ultra-supercritical fais fab nroj tsuag rau nws qhov tshwj xeeb siab siab - qhov kub thiab txias.
Lub rooj sib tham naming feem ntau muab cov lus qhia txog qhov muaj pes tsawg leeg (xws li CrMo qhia Chrome-Molybdenum steel).
Hom Tshuaj Chemical Composition & Mechanical Properties (Piv txwv)
Nov yog cov lus yooj yim rau cov qib carbon steel feem ntau:
| Qib Steel | C (max) | Mn | Si | P (max) | S (max) | Yield zog (min, MPa) | Tensile zog (MPa) |
|---|---|---|---|---|---|---|---|
| P195GH | 0.13 | 0.70 - 1.20 | 0.10 - 0.35 | 0.025 | 0.020 | 195 | 320 - 540 |
| P235GH | 0.16 | 0.80 - 1.20 | 0.10 - 0.35 | 0.025 | 0.020 | 235 | 360 - 480 |
| P265GH | 0.20 | 0.80 - 1.40 | 0.10 - 0.40 | 0.025 | 0.020 | 265 | 410 - 530 |
Nco tseg: Cov no yog qhov qhia tau tias muaj nuj nqis. Cov txheej txheem tag nrho qhia cov txiaj ntsig sib txawv raws li phab ntsa tuab thiab kho cua sov.
Kev tsim khoom thiab kev sim
Cov kav dej ua raws li EN 10216-2 tau txais kev tswj hwm nruj, uas yuav suav nrog:
Tsis yog -Kev Ntsuas Kev Puas Tsuaj (NDT):Ultrasonic kuaj los yog eddy tam sim no kuaj xyuas rau sab hauv thiab deg tsis xws luag.
Kev Ntsuas Hydrostatic:Txhua lub yeeb nkab raug sim rau lub siab tshwj xeeb kom ntseeg tau tias muaj kev ncaj ncees.
Mechanical Tests:Kev ntsuas tensile, cuam tshuam (Charpy) kev kuaj xyuas kom paub tseeb tias muaj zog.
Tshuaj ntsuam xyuas:Kev txheeb xyuas cov khoom muaj pes tsawg leeg.
Visual thiab Dimensional Inspection.
Cov ntawv thov siv
Vim lawv txoj kev ntseeg siab, EN 10216-2 cov kav dej yog siv hauv kev lag luam tseem ceeb:
Kev tsim hluav taws xob:Boiler tubes, superheater tubes, cov kav dej loj, thiab cov kab dej pub rau hauv cov roj fossil thiab biomass fais fab nroj tsuag.
Petrochemical Kev Lag Luam:Refinery piping, heat exchangers, thiab catalytic crackers.
Roj & Roj:Siab - cov kab khiav ceev thiab cov khoom siv ua haujlwm.
Cua sov Systems:Piping rau siab -siab hauv cheeb tsam cua sov tshuab.
Sib piv nrog Lwm Cov Qauv Tseem Ceeb
Nws muaj txiaj ntsig kom nkag siab tias EN 10216-2 cuam tshuam li cas rau lwm cov qauv yeeb nkab.
| Feature | TS EN 10216-2 | TS EN 10216-1 | ASTM A106 / ASME SA106 |
|---|---|---|---|
| Scope | Seamless raj rau siab,kub siab | Seamless raj rau siab,chav kub | Seamless carbon steel yeeb nkab rausiab -kev pabcuam kub |
| Kub tsom | Siab -Tsev Khoom Qhia Tshwj Xeeb | Chav -Tsev Khoom Qhia Tshwj Xeeb | Siab -Tsev Khoom Qhia Tshwj Xeeb |
| Cov Qib Siab | P235GH, P265GH, 10CrMo9-10 | P235TR1, P235TR2 | Qib A, B, C |
| Kev siv hauv cheeb tsam | European / International | European / International | Feem ntau yog North American |
| Sib npaug | Zoo ib yam liASTM A335 Cov Lus Qhia Tshwj Xeebrau qib alloy | Zoo ib yam liASTM A53los yogAPI 5Lrau qee qhov kev siv | Zoo ib yam liTS EN 10216-2rau cov qib carbon steel |
Qhov txawv ntawm EN 10216-1 thiab EN 10216-2:
TS EN 10216-1yog rau cov kav dej siv ntawmambient/chaw kub. Nws cov khoom yog guaranteed ntawm 20 degree.
TS EN 10216-2yog rau cov kav dej siv ntawmsiab kub. Nws cov khoom muaj kev lav phib xaub ntawm qhov kev pabcuam siab (piv txwv li, 300 degree, 500 degree).
Xaus
TS EN 10216-2yog tus qauv tsim nyog rau engineers thiab procurers nyob rau hauv lub zog thiab txheej txheem industries. Nws lav tau tias cov kav dej seamless steel siv hauv lawv cov haujlwm muaj cov khoom pov thawj thiab cov kev tswj xyuas zoo tsim nyog rau kev nyab xeeb thiab txhim khu kev qha ntev - lub sijhawm ua haujlwm nyob rau hauv siab thiab kub.
Thaum muab cov kav dej no, nco ntsoov xyuas kom koj tau txais ib qhozeb xeem daim ntawv pov thawj (MTC) los yog 3.1/3.2 tshuaj xyuas daim ntawv pov thawj, uas muab traceability thiab ua pov thawj cov khoom ua raws li tus qauv.
